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ISO-WD32250 Magnesium vs. AWS E2594

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while AWS E2594 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ISO-WD32250 magnesium and the bottom bar is AWS E2594.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 4.5 to 8.6
17
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
81
Tensile Strength: Ultimate (UTS), MPa 310 to 330
850

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 980
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 1.8
7.8
Embodied Carbon, kg CO2/kg material 24
4.3
Embodied Energy, MJ/kg 160
60
Embodied Water, L/kg 950
190

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 67
25
Strength to Weight: Axial, points 49 to 51
30
Strength to Weight: Bending, points 58 to 60
25
Thermal Diffusivity, mm2/s 72
4.3
Thermal Shock Resistance, points 19 to 20
21

Alloy Composition


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Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0
53.8 to 63.8
Magnesium (Mg), % 94.9 to 97.1
0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
0